Question

A sprinter starting from rest on a straight and level track is able to achieve a speed of 14 m/s in a time of 6.7 s. What is the sprinter's average acceleration?answer:___ m/s2

Answer 1

ANSWER:

2.09 m/s²

STEP-BY-STEP EXPLANATION:

Given:

Initial speed = 0 m/s

Final speed = 14 m/s

Time = 6.7 s

We can determine the acceleration by the following formula:

$\begin{gathered} a=\frac{\Delta v}{\Delta t} \\ \\ \text{ We replacing:} \\ \\ a=\frac{14-0}{6.7-0} \\ \\ a=2.09\text{ m/s}^2 \end{gathered}$

The acceleration is equal to 2.09 m/s²